In the movie "Star Wars", the planet that Luke Skywalker comes from, "Tatooine" sounds very similar to the name of the Tunisian city of "Tataouine". One of the filming locations for Episodes I, II, III and IV, especially the "Tatooine" sequences, was Tunisia.
Later in his life, Alec Guinness (the original Obi Wan Kenobi) always recalled the experience of making the movie as a bad one and consistently claimed that it was his idea to have his character killed in the first film, so he "wouldn't have to carry on saying these rubbish lines".
James Caan, Al Pacino and Burt Reynolds turned down the role of Han Solo.
George Lucas based the character of Han Solo on his friend, director Francis Ford Coppola.
Mel Blanc auditioned for the voice of C-3PO.
George Lucas originally wanted Orson Welles to do Darth Vader's voice, but decided against it, feeling that Welles' voice would be too recognisable.
James Earl Jones supplied the voice of Darth Vader, but specifically requested that he not be credited. At the time, the reason he cited was that he felt he had not done enough work to get the billing, but he later admitted that he didn't want his name associated with the film because he was still an up-and-coming actor, and didn't want to be typecast
20th Century Fox was so sure Star Wars was going to be a disaster that they came within a matter of days of selling off their stake in the film as a tax shelter. Positive feedback from an advanced screening made them change their minds, and the profits from the film ended up saving the studio from bankruptcy.
The Millennium Falcon was originally modeled after a hamburger with an olive next to it.
The word "Jedi" is derived from the Japanese words "Jidai Geki" which translate as "period drama."
George Lucas waived the normal writer/director fee and asked for a mere $175,000 plus 40% of the merchandising rights. Studio executives, seeing little if any profit from such merchandise, agreed.